Oral Medications Dosage Calculations Practice Quiz-LATEST UPDATE

Oral Medications Dosage Calculations Practice
Quiz (Part 2: 40 Items)
1. 1. Question
A health care provider orders acetaminophen (Tylenol) supp 1 g pr q 6
hr prn temp > 101. Available: Tylenol supp. 325 mg (scored). How
many supp. will you administer? Fill in the blank. Record your
answer to the nearest whole number.


o Answer: (3) supp.
Incorrect
Correct answer:
 3 supp.


Formula: Rational
e:
 1 g is equal to 1000 mg.
 Convert first by dividing 1 g with 325 mg to get 0.003 g.
 Then, use the standard formula above.
 Multiply 0.003 g to 1000 mg (desired dose) to get 3.
 Finally, multiply 3 to 1 supp (vehicle) to get 3 supp.
Computation:



2. 2. Question
A nurse practitioner prescribes clindamycin (Cleocin) Oral Susp 600 mg
po qid; Directions for mixing: Add 100 mL of water and shake
vigorously. Each 2.5 mL will contain 100 mg of Cleocin. How many tsp
of Cleocin will you administer? Fill in the blanks. Record your
answer to the nearest whole number.


 Answer: (3) tsp.
Incorrect
Correct answer:
 3 tsp.

, Formula: Rational
e:
 Use the standard formula above.
 Divide 600 mg (desired dose) by 100 mg (drug on hand) to get 6
mg.
 Then, multiply 6 mg to 2.5 mL (vehicle) to get 15 mL.
 Convert mL to teaspoon; 1 tsp is equal to 5 mL.
 Multiply 15 mL to 1 tsp, then divide it by 5 mL to get 3 tsp.



Computation:



3. 3. Question
A health care provider ordered sulfasalazine (Azulfidine) Oral Susp 500
mg q 6 hr; Directions for mixing: Add 125 mL of water and shake well.
Each tbsp will yield 1.5 g of sulfasalazine. How many mL will you
give? Fill in the blanks.


 Answer: (5) ml.
Incorrect
Correct answer:
 5 ml.


Formula: Rational
e:
 Use the standard formula above.
 Divide 500 mg (desired dose) with 1.5 g (drug on hand) to get
333.3.
 Multiply 333.3 to 1 g and divide it by 1000 mg to get 0.3 tbsp.
 1 tbsp is equal to 15 mL.
 Multiply 0.3 to 15 mL to get 4.9 mL.
 Finally, round it off to a whole number to get 5 mL.
Computation: 1 tbsp = 15


ml
4. 4. Question

, A health care provider prescribes potassium chloride (Klotrix) 0.35
mEq/ lb po dissolved in 6 oz of oj at 8 am; Available: Klotrix 8 mEq/mL.
How many mL of Klotrix will you add to the oj for a 20.5 Kg
patient? Fill in the blanks.


 Answer: (2) ml.
Incorrect
Correct answer:
 2 ml.


Formula: Rational
e:
 1 kg is equal to 2.2 lbs.
 Convert kg to lbs first; multiply 20.5 kg to 2.2 lbs to get 45.1 lbs.
 Since 0.35 mEq is recommended for 1 lb, multiply 45.1 lbs to
0.35 mEq to get 15.8 mEq/lb.
 Then, use the standard formula above.
 Divide 15.8 meq/lb (desired dose) by 8 mEq/lb (drug on hand)
then multiply it by 1 mL (vehicle) to get 1.9 mL.
 Finally, round off to a whole number to get 2 mL.
Computation: 20.5 kg x 2.2 lbs = 45.1 lbs. 45.1 lbs. x 0.35 0.35


mEq/lb = 15.8 mEq/lb
5. 5. Question
A health care provider orders megestrol (Megace) Oral Suspension 160
mg po bid; Directions for mixing: Add 100 mL of water and shake
vigorously. Each 0.5 mL will contain 10.7 mg of megestrol. How many
tbsp of megestrol will you administer? Fill in the blanks. Record
your answer using one decimal place.


 Answer: (0.5) tbsp
Incorrect
Correct answer:
 0.5 tbsp.


Formula: Rational
e:
 Use the standard formula above.